Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697879
H. Beiranvand, E. Rokrok, H. Acikgoz, Marco Liserre
Classical transformers are the most important constituent of the power system and act as a passive interface between high voltage and low voltage systems. They have undesirable characteristics such as poor voltage regulation, large size/weight, sensitivity to harmonics, and poor power flow control. Solid-state Transformers (SSTs), are an emerging power electronics-based technology, sought to replace classical transformers after a century. SSTs are equivalent to a classical transformer with embedded desired functionalities. In this paper, three-phase AC-AC converter with capacitor at the DC-link is employed as power electronic interface in MV and LV side of the SST. Input-output feedback linearization (IOFL) controller is used to control the AC-AC based SST in two stages for controlling the external and internal states. AC-AC SST is linearized by the input-output feedback linearization technique where an internal dynamics is observed. IOFL is used to control the internal dynamics and second stage of the controller in the outer loop. Simulation studies are realized to confirm the applicability of IOFL controller and the control method.
{"title":"Two-stage Input-Output Feedback linearization controller for AC-AC converter-based SST","authors":"H. Beiranvand, E. Rokrok, H. Acikgoz, Marco Liserre","doi":"10.1109/PEDSTC.2019.8697879","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697879","url":null,"abstract":"Classical transformers are the most important constituent of the power system and act as a passive interface between high voltage and low voltage systems. They have undesirable characteristics such as poor voltage regulation, large size/weight, sensitivity to harmonics, and poor power flow control. Solid-state Transformers (SSTs), are an emerging power electronics-based technology, sought to replace classical transformers after a century. SSTs are equivalent to a classical transformer with embedded desired functionalities. In this paper, three-phase AC-AC converter with capacitor at the DC-link is employed as power electronic interface in MV and LV side of the SST. Input-output feedback linearization (IOFL) controller is used to control the AC-AC based SST in two stages for controlling the external and internal states. AC-AC SST is linearized by the input-output feedback linearization technique where an internal dynamics is observed. IOFL is used to control the internal dynamics and second stage of the controller in the outer loop. Simulation studies are realized to confirm the applicability of IOFL controller and the control method.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117299063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697653
M. Zare, A. Y. Varjani, Seyed Mohammad Dehghan, Saeed Kavehei
Rail transport is one of the transportation methods on earth that is very frugal in energy consumption. Electric railway technology has many advantages and disadvantages as well. The most important disadvantage of this technology is the creation power quality problems in the upstream power system. In other words, electric railway traction systems due to continuous load variations, Reactive power demand, asymmetry and harmonic Pollution can be challenged for the upstream power system. In this paper, after introducing the structure of the AC electric railway network and its related power quality issues, the railway power quality compensator (RPQC) is introduced. Also, in order to active power transfer between the various lines of electric railway, a railway interline power flow controller (RIPFC) has been introduced. The proposed structure RIPFC is in parallel, unlike the conventional one which is installed in series with the lines. RPQC and RIPFC contains two Separate single phase converters that are connected back to back (B2B) by sharing the same dc link. Extraction of compensating currents for RPQC and RIPFC is based on current measurement and its separation into active, reactive and harmonic components. Moreover, a controller is proposed to maintain the dc-link voltage. The simulation results using PSCAD/EMTDC are provided to demonstrate that the proposed strategies is very effective.
{"title":"Power Quality Compensation and Power Flow Control in AC Railway Traction Power Systems","authors":"M. Zare, A. Y. Varjani, Seyed Mohammad Dehghan, Saeed Kavehei","doi":"10.1109/PEDSTC.2019.8697653","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697653","url":null,"abstract":"Rail transport is one of the transportation methods on earth that is very frugal in energy consumption. Electric railway technology has many advantages and disadvantages as well. The most important disadvantage of this technology is the creation power quality problems in the upstream power system. In other words, electric railway traction systems due to continuous load variations, Reactive power demand, asymmetry and harmonic Pollution can be challenged for the upstream power system. In this paper, after introducing the structure of the AC electric railway network and its related power quality issues, the railway power quality compensator (RPQC) is introduced. Also, in order to active power transfer between the various lines of electric railway, a railway interline power flow controller (RIPFC) has been introduced. The proposed structure RIPFC is in parallel, unlike the conventional one which is installed in series with the lines. RPQC and RIPFC contains two Separate single phase converters that are connected back to back (B2B) by sharing the same dc link. Extraction of compensating currents for RPQC and RIPFC is based on current measurement and its separation into active, reactive and harmonic components. Moreover, a controller is proposed to maintain the dc-link voltage. The simulation results using PSCAD/EMTDC are provided to demonstrate that the proposed strategies is very effective.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122887636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697541
S. Mohammadi, Morteza Dezhbord, Milad Babalou, M. E. Azizkandi, S. Hosseini
In this paper, a novel non-isolated multi-input DC-DC converter (MIC) with high voltage gain has been presented. The presented topology comprises of simple high gain units. The main merits of the proposed topology are continuous current of input sources and possibility of using input sources of different voltage-current characteristics. Duty cycle of each unit can be specified independently and the amount of desired output voltage can be achieved. This topology has a simple switching pattern and the switching frequency can be selected high as well. The number of input units can be increased thus the stress of the switches is decreased as the duty ratio can be selected lower for each unit. The proposed topology is also appropriate for renewable energy sources’ applications and in order to validate the performance of the aforementioned merits, two units of multi-input DC-DC converter topology has been simulated in PSCAD/EMTDC software. Simulation results confirm the valid performance of the proposed topology.
{"title":"A New Non-Isolated Multi-Input DC-DC Converter with High Voltage gain and Low Average of Normalized Peak Inverse Voltage","authors":"S. Mohammadi, Morteza Dezhbord, Milad Babalou, M. E. Azizkandi, S. Hosseini","doi":"10.1109/PEDSTC.2019.8697541","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697541","url":null,"abstract":"In this paper, a novel non-isolated multi-input DC-DC converter (MIC) with high voltage gain has been presented. The presented topology comprises of simple high gain units. The main merits of the proposed topology are continuous current of input sources and possibility of using input sources of different voltage-current characteristics. Duty cycle of each unit can be specified independently and the amount of desired output voltage can be achieved. This topology has a simple switching pattern and the switching frequency can be selected high as well. The number of input units can be increased thus the stress of the switches is decreased as the duty ratio can be selected lower for each unit. The proposed topology is also appropriate for renewable energy sources’ applications and in order to validate the performance of the aforementioned merits, two units of multi-input DC-DC converter topology has been simulated in PSCAD/EMTDC software. Simulation results confirm the valid performance of the proposed topology.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125156762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697746
Ramin Ayoubi, S. Kaboli
Short-circuit fault (SCF) detection is mandatory in a high voltage DC power supply (HVPS) to prevent fatal damage. The majority of converters employ a single sensor to detect the SCF. This attribute increases the interference vulnerability of the fault detection (FD) system in the presence of noise. Therefore, miss detections and false alarms are possible to occur. Miss detections and false alarms are harmful catastrophes in most applications. A commonly used method to suppress the noise impacts is using a low-bandwidth low-pass filter. However, the use of the low-bandwidth low-pass filter reduces the speed of FD due to the filter delay. This paper proposes a fast FD algorithm based on multisensor data fusion. The proposed FD system consists of three FD subsystems with high-bandwidth low-pass filters, which each one is individually implemented by sensing three distinct variables and reaches a local decision about the SCF occurrence. Finally, all local decisions are gathered in a decision fusion center and a global decision regarding the converter situation will be made based on the weighted decision fusion. The simulation and experimental results confirm the performance of the proposed FD system in the presence of noise.
{"title":"A Robust Short-Circuit Fault Diagnosis for High Voltage DC Power Supply Based on Multisensor Data Fusion","authors":"Ramin Ayoubi, S. Kaboli","doi":"10.1109/PEDSTC.2019.8697746","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697746","url":null,"abstract":"Short-circuit fault (SCF) detection is mandatory in a high voltage DC power supply (HVPS) to prevent fatal damage. The majority of converters employ a single sensor to detect the SCF. This attribute increases the interference vulnerability of the fault detection (FD) system in the presence of noise. Therefore, miss detections and false alarms are possible to occur. Miss detections and false alarms are harmful catastrophes in most applications. A commonly used method to suppress the noise impacts is using a low-bandwidth low-pass filter. However, the use of the low-bandwidth low-pass filter reduces the speed of FD due to the filter delay. This paper proposes a fast FD algorithm based on multisensor data fusion. The proposed FD system consists of three FD subsystems with high-bandwidth low-pass filters, which each one is individually implemented by sensing three distinct variables and reaches a local decision about the SCF occurrence. Finally, all local decisions are gathered in a decision fusion center and a global decision regarding the converter situation will be made based on the weighted decision fusion. The simulation and experimental results confirm the performance of the proposed FD system in the presence of noise.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125165969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697874
Hossein Hosseinyar, S. Karimi, F. Tahami
Control of Synchronous Motors at low speed has been the topic of several studies for the last years. Due to the lower amplitude of Back-EMF voltage in lower speed, it is inappropriate to merely rely on induced voltages for position estimation. In this paper, a new double carrier PWM modulation is presented in which two carrier frequencies are utilized for two legs of the inverter. This proposed method rectify the need of powerful processors which decreases the cost of the electric drive system. Employing a non-linear control system and an automatic gain control, ensures the sensorless control of the motor for a wide range of speed.
{"title":"A Novel Double Carrier PWM Modulation for Sensorless Control of Permanent Magnet Synchronous Motors","authors":"Hossein Hosseinyar, S. Karimi, F. Tahami","doi":"10.1109/PEDSTC.2019.8697874","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697874","url":null,"abstract":"Control of Synchronous Motors at low speed has been the topic of several studies for the last years. Due to the lower amplitude of Back-EMF voltage in lower speed, it is inappropriate to merely rely on induced voltages for position estimation. In this paper, a new double carrier PWM modulation is presented in which two carrier frequencies are utilized for two legs of the inverter. This proposed method rectify the need of powerful processors which decreases the cost of the electric drive system. Employing a non-linear control system and an automatic gain control, ensures the sensorless control of the motor for a wide range of speed.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125240485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697782
R. Yazdanpanah
An electromagnetic design approach and performance analysis for a radial-flux eddy current brake that has hybrid excitation are presented. In this study, the brake design is done using magnetic equivalent circuit and then the eddy currents, and braking torque are calculated by numerical methods. Also, the sensitivity analysis of torque characteristics for two important parameters are performed. The presented method could be used for design and optimization of a brake for specific application.
{"title":"Design and Analysis of Radial-Flux Hybrid Excitation Eddy Current Brake","authors":"R. Yazdanpanah","doi":"10.1109/PEDSTC.2019.8697782","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697782","url":null,"abstract":"An electromagnetic design approach and performance analysis for a radial-flux eddy current brake that has hybrid excitation are presented. In this study, the brake design is done using magnetic equivalent circuit and then the eddy currents, and braking torque are calculated by numerical methods. Also, the sensitivity analysis of torque characteristics for two important parameters are performed. The presented method could be used for design and optimization of a brake for specific application.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127281721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697726
H. A. Moghaddam, F. Mahmouditabar, A. Haghi
the iron powder magnetic material has widespread applications in engineering. So appropriate measuring characteristics of this material especially B-H curve is essential in the design procedure of the inductor used in power electronics. One of the standard frames for measuring the magnetic characteristics of the iron powder is the toroid core. The accuracy of measuring the magnetic characteristics of the toroid core is affected by various uncertainties. One of this uncertainties is the non-uniform distribution of magnetic field in the surface of the core. This issue in presence of impurity and non-uniform distribution in core compounds can leads to the error in measuring the hysteresis loop and core losses. In this paper first, the analytical design of the dimension of the toroid core based on IEC Standard 60404-6 has carried out then the Finite Element Method (FEM) and Simulink model are used to confirm the analytical design. Furthermore, the designed toroid frame is manufactured and the result compared to each other. Eventually, the issues of impurity and non-uniform magnetic field distribution on the toroid core are investigated.
{"title":"Identification of Iron Powder B-H Characteristics Considering Impurities in the magnetic material","authors":"H. A. Moghaddam, F. Mahmouditabar, A. Haghi","doi":"10.1109/PEDSTC.2019.8697726","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697726","url":null,"abstract":"the iron powder magnetic material has widespread applications in engineering. So appropriate measuring characteristics of this material especially B-H curve is essential in the design procedure of the inductor used in power electronics. One of the standard frames for measuring the magnetic characteristics of the iron powder is the toroid core. The accuracy of measuring the magnetic characteristics of the toroid core is affected by various uncertainties. One of this uncertainties is the non-uniform distribution of magnetic field in the surface of the core. This issue in presence of impurity and non-uniform distribution in core compounds can leads to the error in measuring the hysteresis loop and core losses. In this paper first, the analytical design of the dimension of the toroid core based on IEC Standard 60404-6 has carried out then the Finite Element Method (FEM) and Simulink model are used to confirm the analytical design. Furthermore, the designed toroid frame is manufactured and the result compared to each other. Eventually, the issues of impurity and non-uniform magnetic field distribution on the toroid core are investigated.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122369090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697779
Mohammad Mirzaie Banafsh Tappeh, J. Shokrollahi Moghani, A. Khorsandi
Power converter design play an essential role in harvesting cheap and reliable electrical energy from solar energy. In the design of the converters, an appropriate trade-off between power converter output power quality and complexity should be made. Meanwhile, modular multilevel converters (MMC) are such a popular choice due to significant advantages like modularity, switching redundancy, the high number of voltage levels, lower output harmonics, elimination of expensive and huge output filters, etc. In this paper, a modified control strategy considering photovoltaic array structure for a high power MMC is presented. The proposed approach results in enormous faster dynamic and decoupled injected active and reactive power control. Also, using a single carrier modulation technique, and applying it to the capacitor voltage balancing algorithm, the capacitor voltage ripple is constrained to the allowed limits, which significantly decreases the circulation current. A 3MW 9-level MMC has been evaluated by MATLAB/Simulink to approve the operation of suggested modified current loop MMC controller.
{"title":"Active and Reactive Power Control Strategy of the Modular Multilevel Converter for Grid-Connected Large Scale Photovoltaic Conversion Plants","authors":"Mohammad Mirzaie Banafsh Tappeh, J. Shokrollahi Moghani, A. Khorsandi","doi":"10.1109/PEDSTC.2019.8697779","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697779","url":null,"abstract":"Power converter design play an essential role in harvesting cheap and reliable electrical energy from solar energy. In the design of the converters, an appropriate trade-off between power converter output power quality and complexity should be made. Meanwhile, modular multilevel converters (MMC) are such a popular choice due to significant advantages like modularity, switching redundancy, the high number of voltage levels, lower output harmonics, elimination of expensive and huge output filters, etc. In this paper, a modified control strategy considering photovoltaic array structure for a high power MMC is presented. The proposed approach results in enormous faster dynamic and decoupled injected active and reactive power control. Also, using a single carrier modulation technique, and applying it to the capacitor voltage balancing algorithm, the capacitor voltage ripple is constrained to the allowed limits, which significantly decreases the circulation current. A 3MW 9-level MMC has been evaluated by MATLAB/Simulink to approve the operation of suggested modified current loop MMC controller.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116287992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697543
A. Zakerian, S. Vaez‐Zadeh, Amir Babaki, Majid Moghaddam
Dynamic Wireless Power Transfer (DWPT) systems are becoming an interesting option for charging EVs in urban and suburban areas, due to its advantages. Since Efficiency of these system is of major concern, maximizing transferred power efficiency is analyzed in this paper. Optimization of equivalent load resistance is proposed in this paper by using a DC-DC buck converter in the secondary side. Since the optimum load is a function of coupling coefficient which may varies for moving vehicles, an estimation method is proposed to calculate it dynamically. By using the estimated coupling coefficient, an optimum equivalent load resistance and the corresponding buck duty cycle is calculated and applied to the converter by PWM method to maximize the efficiency. In addition, a voltage regulation method is proposed by controlling the duty cycle of the primary side inverter. As a result, the load voltage is fixed at its reference value and a constant power is delivered to the load even if coupling coefficient changes. The proposed control method is applied to a DWPT system, where the simulation results indicate the effectiveness of the proposed method.
{"title":"Efficiency Optimization of a Dynamic Wireless EV Charging System Using Coupling Coefficient Estimation","authors":"A. Zakerian, S. Vaez‐Zadeh, Amir Babaki, Majid Moghaddam","doi":"10.1109/PEDSTC.2019.8697543","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697543","url":null,"abstract":"Dynamic Wireless Power Transfer (DWPT) systems are becoming an interesting option for charging EVs in urban and suburban areas, due to its advantages. Since Efficiency of these system is of major concern, maximizing transferred power efficiency is analyzed in this paper. Optimization of equivalent load resistance is proposed in this paper by using a DC-DC buck converter in the secondary side. Since the optimum load is a function of coupling coefficient which may varies for moving vehicles, an estimation method is proposed to calculate it dynamically. By using the estimated coupling coefficient, an optimum equivalent load resistance and the corresponding buck duty cycle is calculated and applied to the converter by PWM method to maximize the efficiency. In addition, a voltage regulation method is proposed by controlling the duty cycle of the primary side inverter. As a result, the load voltage is fixed at its reference value and a constant power is delivered to the load even if coupling coefficient changes. The proposed control method is applied to a DWPT system, where the simulation results indicate the effectiveness of the proposed method.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127765635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697659
M. Aghaei, Ramin Ayoubi, S. Kaboli
High voltage power supplies (HVPS) are widely used to supply vacuum tubes. Regarding to their high efficiency, resonant converters are a choice of HVPS structure. In this application, HVPS is faced with wide variation of the load power. On the other hand, output voltage regulation over wide load range is essential. However, there are several problems dealing with resonant converters such as output voltage regulation and low-efficient performance in a light load. In this paper, a control scheme for a series-parallel resonant converter is presented. This scheme regulates the output voltage of the converter over load variation range. A variable inductor placed as the series inductor in the resonant tank achieves constant maximum power factor. Output voltage is regulated by phase-shift method and the switching frequency is constant. Experimental results are presented to confirm the proposed method.
{"title":"A High Voltage Variable Inductor LCC Resonant Converter with High Power Factor over Wide Load Range","authors":"M. Aghaei, Ramin Ayoubi, S. Kaboli","doi":"10.1109/PEDSTC.2019.8697659","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697659","url":null,"abstract":"High voltage power supplies (HVPS) are widely used to supply vacuum tubes. Regarding to their high efficiency, resonant converters are a choice of HVPS structure. In this application, HVPS is faced with wide variation of the load power. On the other hand, output voltage regulation over wide load range is essential. However, there are several problems dealing with resonant converters such as output voltage regulation and low-efficient performance in a light load. In this paper, a control scheme for a series-parallel resonant converter is presented. This scheme regulates the output voltage of the converter over load variation range. A variable inductor placed as the series inductor in the resonant tank achieves constant maximum power factor. Output voltage is regulated by phase-shift method and the switching frequency is constant. Experimental results are presented to confirm the proposed method.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127398934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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